Mast Therapeutics, Inc. (NYSEMKT:MSTX) Files An 8-K Entry into a Material Definitive Agreement

Mast Therapeutics, Inc. (NYSEMKT:MSTX) Files An 8-K Entry into a Material Definitive Agreement
Item 1.01 Entry into a Material Definitive Agreement.

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On April 7, 2017, the board of directors (the “Board”) of Mast Therapeutics, Inc. (the “Company”) authorized the Company to transfer the listing of its common stock from the NYSE MKT LLC (the “NYSE MKT”) to The Nasdaq Stock Market LLC (“Nasdaq”) in connection with the Company’s proposed business combination (the “Merger”) with Savara Inc. (“Savara”).  Pending completion of the Merger, the combined company’s common stock has been approved for listing on The Nasdaq Capital Market, and on April 7, 2017, the Company provided written notice to the NYSE MKT of its intention to voluntarily delist its common stock from the NYSE MKT and to list its common stock on Nasdaq effective on the first trading day after the closing of the Merger. The Company’s common stock is expected to trade under the ticker symbol “MSTX” on the NYSE MKT until the closing of the Merger and commence trading on The Nasdaq Capital Market under the ticker symbol “SVRA” the first business day following the closing of the Merger.

In connection with the transfer to Nasdaq, Savara agreed to waive the Company’s obligation to prepare and submit to the NYSE MKT a listing application and the condition to the closing of the Merger that such listing application shall have been approved.

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

The information included in Item 1.01 above is incorporated by reference.

Item 7.01 Regulation FD Disclosure.

On April 10, 2017, the Company issued a press release announcing the transfer of the listing to Nasdaq, a copy of which is furnished as Exhibit 99.1 to this report.

The information in Item 7.01 and in Exhibit 99.1 furnished herewith shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Additional Information about the Merger and Where to Find It

In connection with the Merger, the Company has filed relevant materials with the Securities and Exchange Commission (“SEC”), including a registration statement on Form S-4 that contains a proxy statement, prospectus and information statement. The registration statement was declared effective by the SEC on March 15, 2017. The proxy statement/prospectus/information statement, other relevant materials, and any other documents filed by the Company with the SEC may be obtained free of charge at the SEC web site at In addition, investors and security holders may obtain free copies of the documents filed by the Company with the SEC by directing a written request to: Mast Therapeutics, Inc., 3611 Valley Centre Drive, Suite 500, San Diego, CA 92130, Attention: Investor Relations. Investors and security holders are urged to read the proxy statement/prospectus/information statement and the other relevant materials before making any voting or investment decision with respect to the Merger.

This communication shall not constitute an offer to sell or the solicitation of an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.

Participants in the Solicitation

The Company and its directors and executive officers and Savara and its directors and executive officers may be deemed to be participants in the solicitation of proxies from the stockholders of the Company in connection with the proposed transaction. Information regarding the special interests of these directors and executive officers in the merger is included in the proxy statement/prospectus/information statement referred to above. Additional information regarding the directors and executive officers of the Company is also included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016, which was filed with the SEC on March 6, 2017. These documents are available free of charge at the SEC web site ( and from the Company, Attn: Investor Relations, at the address described above.

Item 9.01 Financial Statements and Exhibits.

Reference is made to the Exhibit Index included with this Current Report on Form 8-K.

About Mast Therapeutics, Inc. (NYSEMKT:MSTX)

Mast Therapeutics, Inc. is a biopharmaceutical company. The Company develops clinical-stage therapies for serious or life-threatening diseases with unmet needs. The Company focuses on developing new therapies for sickle cell disease, a chronic and genetic disorder classified as a rare, or orphan, disease in the United States of America and European Union, and for heart failure, a condition with an unmet need for treatment options. The Company’s segment is engaged in the business of developing therapies for serious or life-threatening diseases. The Company focuses on its Molecular Adhesion and Sealant Technology (MAST) platform, to develop MST-188 (vepoloxamer) Injection, its lead product candidate. The Company also develops AIR001, a sodium nitrite solution for intermittent inhalation through nebulizer. The Company’s AIR001 is in Phase II clinical development for the treatment of patients with HFpEF.

Mast Therapeutics, Inc. (NYSEMKT:MSTX) Recent Trading Information

Mast Therapeutics, Inc. (NYSEMKT:MSTX) closed its last trading session down -0.002 at 0.127 with 1,860,442 shares trading hands.

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